Table 1.
Values of sensitivity, specificity, and ROC area under the curve (AUC) by adherence assessment method
| Adherence | Adherence + immunological outcome | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Adherence method | % cut-off | AUC | Accuracy | p-value | Sen | Spe | AUC | Accuracy | p-value | Sen | Spe |
| SHCS-AQ | NA | 0.52 | 58.64 | 0.33 | 0.31 | 0.73 | 0.52 | 56.79 | 0.90 | 0.38 | 0.66 |
| VAS | 95 | 0.53 | 64.20 | <0.0001 | 0.16 | 0.89 | 0.56 | 64.81 | <0.01 | 0.27 | 0.84 |
| Appointment keeping | 80 | 0.53 | 62.11 | 0.01 | 0.25 | 0.81 | 0.59 | 64.60 | 0.43 | 0.42 | 0.76 |
| Pharmacy refill | 95 | 0.61 | 61.11 | 0.02 | 0.60 | 0.62 | 0.63 | 61.11 | <0.0001 | 0.69 | 0.57 |
| Pill count | 90 | 0.53 | 44.03 | <0.0001 | 0.79 | 0.26 | 0.53 | 44.10 | <0.0001 | 0.82 | 0.25 |
Key: SHCS-AQ = Swiss HIV Cohort Study Adherence Questionnaire;
VAS = Visual Analog Scale; AUC = Area under the Curve; ROC = Receiver Operating Characteristic; Sen = Sensitivity; Spe = Specificity; NA = not applicable.